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How to Fix Windows Security High CPU Usage - Windows Security Token Expired – Fix 0x80070520-How to Fix Windows Defender Port Conflict in Event Viewer

2026-06-15 19:39:13
How to Fix Windows Security High CPU Usage - Windows Security Token Expired – Fix 0x80070520-How to Fix Windows Defender Port Conflict in Event Viewer

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.